Sprinkler base



FIG. 1 is a perspective view of a sprinkler base showing our new design;

FIG. 2 is a front elevational view showing the design for the sprinklerbase of FIG. 1;

FIG. 3 is a rear elevational view showing the design for the sprinklerbase of FIG. 1;

FIG. 4 is a left side elevational view showing the design for thesprinkler base of FIG. 1;

FIG. 5 is a right side elevational view showing the design for thesprinkler base of FIG. 1;

FIG. 6 is a top plan view showing the design for the sprinkler base ofFIG. 1; and,

FIG. 7 is a bottom plan view showing the design for the sprinkler baseof FIG. 1.

The broken line showing is included for the purpose of illustrating andforms no part of the claimed design.

CLAIM The ornamental design for a sprinkler base, as shown anddescribed.